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Okay, so on my quest to check out the web site cracking scene, I got me a scanner. SuperScan 3.0.

The only problem is...whenever I scan blocks of IP's, NONE of them are active. I've had luck on "localhost", but that's the ONLY one. Even website's URL's don't have ports open -- and they should have port 80 open at least.

The program pings, then scans. a ping IS a ICMP packet. It's what determines if a host is active. Even if a machine IS online, it can show as inactive cause the ping was not returned.

Make sure that "Ping Only" is not selected. And make sure that "Scan only responsive pings" is not selected.

I'll explain what it means to "scan" a host. When you tell the program a range of IP's to scan, it will then try to connect to every port in the port list, or every port in the port range you selected. If it successfully connects - it will disconnect and tell you that port is open.

SuperScan uses a full TCP connect() so that it can also grab the daemon banner. this is the loudest way to scan an it will be detected in logs. you have to check what ports you selected in the port list. Then check "scan ports in port list".

nmap is definitely a good scanner to use. However, don't be fooled into thinking that stealth scans (even FIN scans) are undetectable. When I would peruse the IDS logs at work, you wouldn't believe what I would see...

probably cause you're not adding the IP into the range fields. You're adding it in the top text box aren't you? Well, that box is only for resolving the IP to a host or to resolve a host into an IP which will be put into those 2 range text boxes with 'start' and 'stop' in front of them.

So load up SuperScan. Enter http://www.yahoo.com into the top text box. Click the "Lookup" button. Now click the "Start" button.

If you STILL don't get an open port on 80, then maybe you didn't tell it to scan that port.

Well, if you can't get it to work this time, tough. I've lost all patience.